Nosebleeds in children may be related to infection, allergy, deviated septum and other factors, and need to be targeted for the cause of the treatment, clinically available through anti-infection, anti-allergy, surgery and other treatments, in order to achieve the purpose of root cause or treatment. 1. Infection: bacterial and other pathogenic microbial infections caused by children’s rhinitis symptoms of nosebleeds, need to actively undergo anti-infection treatment, need to follow the medical advice to use sensitive antibiotics such as levofloxacin, amoxicillin and other drugs for treatment to control local inflammatory reaction. 2. Allergy: children with nosebleeds due to contact with pollen, dust mites and other allergens need to avoid contact with allergens, with paracetamol, loratadine and other anti-allergy medications can also improve symptoms. 3. Deviated nasal septum: If children with nosebleeds caused by deviated nasal septum want to get rid of the disease, they may need to undergo surgical treatment to restore the normal physiological structure of the nasal cavity, in order to get rid of the root cause of the disease. There may be other clinical causes of nosebleeds in children. It is recommended to go to the ear, nose and throat department of the hospital to determine the cause of the disease and receive treatment to address the cause of the disease in order to eliminate the root cause or cure the disease.